Which one of the following physical quantities changes with relativistic speed?
Correct answer: A. Mass
- A. Mass
- B. Length
- C. Time
- D. All of these
Explanation
The physical quantity that changes with relativistic speed according to Einstein's theory of special relativity is mass. The physical quantity that changes with relativistic speed according to Einstein's theory of special relativity is mass.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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